X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firprog.c;h=f379ff2540cbcc2c7963134875a0c3f4d6c6b66d;hb=1140301fc5c11fef75f583bc4d94082cfd450fbc;hp=2728791eb9d2be74f76a251cfe36b7f437172b25;hpb=9be70b7ef6120836707d76050372a89247cec2a6;p=libfirm

diff --git a/ir/ir/irprog.c b/ir/ir/irprog.c
index 2728791eb..f379ff254 100644
--- a/ir/ir/irprog.c
+++ b/ir/ir/irprog.c
@@ -1,176 +1,524 @@
-/* Copyright (C) 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Goetz Lindenmaier
-**
-** irprog.c: ir representation of a program
-*/
-
-/* $Id$ */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+/*
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+/**
+ * @file
+ * @brief    Entry point to the representation of a whole program.
+ * @author   Goetz Lindenmaier, Michael Beck
+ * @date     2000
+ * @version  $Id$
+ */
+#include "config.h"
 
-# include <string.h>
+#include <string.h>
 
-# include "irprog_t.h"
-# include "irgraph_t.h"
-# include "array.h"
-# include "obst.h"
-# include "typegmod.h"
+#include "irprog_t.h"
+#include "irgraph_t.h"
+#include "irpass_t.h"
+#include "array.h"
+#include "error.h"
+#include "obst.h"
+#include "irop_t.h"
+#include "irmemory.h"
 
-#define GLOBAL_TYPE_NAME "GlobalType"
+/** The initial name of the irp program. */
+#define INITAL_PROG_NAME "no_name_set"
 
 /* A variable from where everything in the ir can be accessed. */
 ir_prog *irp;
-ir_prog *get_irp() { return irp; }
+ir_prog *get_irp(void) { return irp; }
+void set_irp(ir_prog *new_irp)
+{
+	irp = new_irp;
+}
+
+/**
+ *  Create a new incomplete ir_prog.
+ */
+static ir_prog *new_incomplete_ir_prog(void)
+{
+	ir_prog *res = XMALLOCZ(ir_prog);
+
+	res->kind           = k_ir_prog;
+	res->graphs         = NEW_ARR_F(ir_graph *, 0);
+	res->types          = NEW_ARR_F(ir_type *, 0);
+	res->modes          = NEW_ARR_F(ir_mode *, 0);
+	res->opcodes        = NEW_ARR_F(ir_op *, 0);
+	res->global_asms    = NEW_ARR_F(ident *, 0);
+	res->last_region_nr = 0;
+	res->last_label_nr  = 1;  /* 0 is reserved as non-label */
+	res->max_irg_idx    = 0;
+	res->max_node_nr    = 0;
+#ifndef NDEBUG
+	res->reserved_resources = 0;
+#endif
+
+	return res;
+}
 
-/* initializes ir_prog. Calles the constructor for an ir_prog. */
-void init_irprog(void) {
-  new_ir_prog ();
+/**
+ * Completes an incomplete irprog.
+ *
+ * @param irp          the (yet incomplete) irp
+ * @param module_name  the (module) name for this irp
+ */
+static ir_prog *complete_ir_prog(ir_prog *irp, const char *module_name)
+{
+	ir_segment_t s;
+
+#define IDENT(x)  new_id_from_chars(x, sizeof(x) - 1)
+
+	irp->name = new_id_from_str(module_name);
+	irp->segment_types[IR_SEGMENT_GLOBAL] = new_type_class(IDENT("GlobalType"));
+	irp->segment_types[IR_SEGMENT_THREAD_LOCAL]
+		= new_type_class(IDENT("ThreadLocal"));
+	irp->segment_types[IR_SEGMENT_CONSTRUCTORS]
+		= new_type_class(IDENT("Constructors"));
+	irp->segment_types[IR_SEGMENT_DESTRUCTORS]
+		= new_type_class(IDENT("Destructors"));
+	/* Remove these types from type list.  Must be treated differently than
+	   other types. */
+	for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
+		remove_irp_type(irp->segment_types[s]);
+	}
+
+	/* Set these flags for debugging. */
+	irp->segment_types[IR_SEGMENT_GLOBAL]->flags       |= tf_global_type;
+	irp->segment_types[IR_SEGMENT_THREAD_LOCAL]->flags |= tf_tls_type;
+	irp->segment_types[IR_SEGMENT_CONSTRUCTORS]->flags |= tf_constructors;
+	irp->segment_types[IR_SEGMENT_DESTRUCTORS]->flags  |= tf_destructors;
+
+	/* The global type is a class, but we cannot derive from it, so set
+	   the final property to assist optimizations that checks for it. */
+	set_class_final(irp->segment_types[IR_SEGMENT_GLOBAL], 1);
+
+	irp->const_code_irg             = new_const_code_irg();
+	irp->phase_state                = phase_building;
+	irp->outs_state                 = outs_none;
+	irp->ip_outedges                = NULL;
+	irp->trouts_state               = outs_none;
+	irp->class_cast_state           = ir_class_casts_transitive;
+	irp->globals_entity_usage_state = ir_entity_usage_not_computed;
+
+	return irp;
+#undef IDENT
+}
+
+/* initializes ir_prog. Constructs only the basic lists. */
+void init_irprog_1(void)
+{
+	irp = new_incomplete_ir_prog();
 }
 
-INLINE void remove_irp_type_from_list (type *typ) {
-  int i;
-  assert(typ);
-  for (i = 1; i < (ARR_LEN (irp->types)); i++) {
-    if (irp->types[i] == typ) {
-      for(; i < (ARR_LEN (irp->types)) - 1; i++) {
-	irp->types[i] = irp->types[i+1];
-      }
-      ARR_SETLEN(type*, irp->types, (ARR_LEN(irp->types)) - 1);
-      break;
-    }
-  }
+/* Completes ir_prog. */
+void init_irprog_2(void)
+{
+	(void)complete_ir_prog(irp, INITAL_PROG_NAME);
 }
 
 /* Create a new ir prog. Automatically called by init_firm through
    init_irprog. */
-ir_prog *new_ir_prog (void) {
-  ir_prog *res;
-
-  res = (ir_prog *) malloc (sizeof(ir_prog));
-  irp = res;
-  /* res->obst      = (struct obstack *) xmalloc (sizeof (struct obstack)); */
-  res->graphs = NEW_ARR_F (ir_graph *, 1);
-  res->types  = NEW_ARR_F (type *, 1);
-  res->glob_type = new_type_class(id_from_str (GLOBAL_TYPE_NAME,
-					       strlen(GLOBAL_TYPE_NAME)));
-  /* Remove type from type list.  Must be treated differently than
-     other types. */
-  remove_irp_type_from_list(res->glob_type);
-
-  res->const_code_irg = new_const_code_irg();
-
-#ifdef DEBUG_libfirm
-  res->max_node_nr = 1;
-#endif
+ir_prog *new_ir_prog(const char *name)
+{
+	return complete_ir_prog(new_incomplete_ir_prog(), name);
+}
+
+/* frees all memory used by irp.  Types in type list, irgs in irg
+   list and entities in global type must be freed by hand before. */
+void free_ir_prog(void)
+{
+	ir_segment_t s;
+	for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
+		free_type(irp->segment_types[s]);
+	}
+
+	free_ir_graph(irp->const_code_irg);
+	DEL_ARR_F(irp->graphs);
+	DEL_ARR_F(irp->types);
+	DEL_ARR_F(irp->modes);
+
+	finish_op();
+	DEL_ARR_F(irp->opcodes);
+	DEL_ARR_F(irp->global_asms);
 
-  return res;
+	irp->name           = NULL;
+	irp->const_code_irg = NULL;
+	irp->kind           = k_BAD;
 }
 
-/** Functions to access the fields of ir_prog **/
+/*- Functions to access the fields of ir_prog -*/
 
 
 /* Access the main routine of the compiled program. */
-ir_graph *get_irp_main_irg() {
-  assert (irp);
-  return irp->main_irg;
+ir_graph *get_irp_main_irg(void)
+{
+	assert(irp);
+	return irp->main_irg;
+}
+
+void set_irp_main_irg(ir_graph *main_irg)
+{
+	assert(irp);
+	irp->main_irg = main_irg;
+}
+
+ir_type *(get_segment_type)(ir_segment_t segment)
+{
+	return _get_segment_type(segment);
 }
 
-void set_irp_main_irg(ir_graph *main_irg) {
-  assert (irp);
-  irp->main_irg = main_irg;
+void set_segment_type(ir_segment_t segment, ir_type *new_type)
+{
+	assert(segment <= IR_SEGMENT_LAST);
+	irp->segment_types[segment] = new_type;
+	/* segment types are not in the type list... */
+	remove_irp_type(new_type);
 }
 
-type *get_glob_type(void) {
-  assert(irp);
-  return irp->glob_type = skip_tid(irp->glob_type);
+ir_type *(get_glob_type)(void)
+{
+	return _get_glob_type();
+}
+
+ir_type *(get_tls_type)(void)
+{
+	return _get_tls_type();
 }
 
 /* Adds irg to the list of ir graphs in irp. */
-void add_irp_irg(ir_graph *irg) {
-  assert (irg != NULL);
-  assert(irp && irp->graphs);
-  ARR_APP1 (ir_graph *, irp->graphs, irg);
+void add_irp_irg(ir_graph *irg)
+{
+	assert(irg != NULL);
+	assert(irp && irp->graphs);
+	ARR_APP1(ir_graph *, irp->graphs, irg);
+}
+
+/* Removes irg from the list or irgs, shrinks the list by one. */
+void remove_irp_irg_from_list(ir_graph *irg)
+{
+	int i, l, found = 0;
+
+	assert(irg);
+	l = ARR_LEN(irp->graphs);
+	for (i = 0; i < l; i++) {
+		if (irp->graphs[i] == irg) {
+			found = 1;
+			for (; i < l - 1; i++) {
+				irp->graphs[i] = irp->graphs[i+1];
+			}
+			ARR_SETLEN(ir_graph*, irp->graphs, l - 1);
+			break;
+		}
+	}
 }
 
 /* Removes irg from the list or irgs, shrinks the list by one. */
-void remove_irp_irg(ir_graph *irg){
-  int i;
-  assert(irg);
-  free_ir_graph(irg);
-  for (i = 1; i < (ARR_LEN (irp->graphs)); i++) {
-    if (irp->graphs[i] == irg) {
-      for(; i < (ARR_LEN (irp->graphs)) - 1; i++) {
-	irp->graphs[i] = irp->graphs[i+1];
-      }
-      ARR_SETLEN(ir_graph*, irp->graphs, (ARR_LEN(irp->graphs)) - 1);
-      break;
-    }
-  }
+void remove_irp_irg(ir_graph *irg)
+{
+	free_ir_graph(irg);
+	remove_irp_irg_from_list(irg);
+}
+
+int (get_irp_n_irgs)(void)
+{
+	return _get_irp_n_irgs();
 }
 
-int get_irp_n_irgs() {
-  assert (irp && irp->graphs);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  return (ARR_LEN((irp)->graphs) - 1);
+ir_graph *(get_irp_irg)(int pos)
+{
+	return _get_irp_irg(pos);
 }
 
-ir_graph *get_irp_irg(int pos){
-  assert (irp && irp->graphs);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  return irp->graphs[pos+1];
+int get_irp_last_idx(void)
+{
+	return irp->max_irg_idx;
 }
 
-void set_irp_irg(int pos, ir_graph *irg) {
-  assert (irp && irg);
-  assert (pos < (ARR_LEN((irp)->graphs) - 1));
-  /* Strangely the first element of the array is NULL.  Why??  */
-  irp->graphs[pos+1] = irg;
+void set_irp_irg(int pos, ir_graph *irg)
+{
+	assert(irp && irg);
+	assert(pos < (ARR_LEN(irp->graphs)));
+	irp->graphs[pos] = irg;
 }
 
 /* Adds type to the list of types in irp. */
-void add_irp_type(type *typ) {
-  assert (typ != NULL);
-  assert(irp);
-  ARR_APP1 (type *, irp->types, typ);
+void add_irp_type(ir_type *typ)
+{
+	assert(typ != NULL);
+	assert(irp);
+	ARR_APP1(ir_type *, irp->types, typ);
 }
 
-void remove_irp_type(type *typ) {
-  remove_irp_type_from_list (typ);
+/* Remove type from the list of types in irp. */
+void remove_irp_type(ir_type *typ)
+{
+	int i;
+	assert(typ);
+
+	for (i = ARR_LEN(irp->types) - 1; i >= 0; i--) {
+		if (irp->types[i] == typ) {
+			for (; i < (ARR_LEN(irp->types)) - 1; i++) {
+				irp->types[i] = irp->types[i+1];
+			}
+			ARR_SETLEN(ir_type *, irp->types, (ARR_LEN(irp->types)) - 1);
+			break;
+		}
+	}
 }
 
-int get_irp_n_types (void) {
-  assert (irp && irp->types);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  return (ARR_LEN((irp)->types) - 1);
+int (get_irp_n_types) (void)
+{
+	return _get_irp_n_types();
 }
 
-type *get_irp_type(int pos) {
-  assert (irp && irp->types);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  /* Don't set the skip_tid result so that no double entries are generated. */
-  return skip_tid(irp->types[pos+1]);
+ir_type *(get_irp_type) (int pos)
+{
+	return _get_irp_type(pos);
 }
 
-void  set_irp_type(int pos, type *typ) {
-  assert (irp && typ);
-  assert (pos < (ARR_LEN((irp)->types) - 1));
-  /* Strangely the first element of the array is NULL.  Why??  */
-  irp->types[pos+1] = typ;
+void set_irp_type(int pos, ir_type *typ)
+{
+	assert(irp && typ);
+	assert(pos < (ARR_LEN((irp)->types)));
+	irp->types[pos] = typ;
 }
 
-#ifdef DEBUG_libfirm
-int get_irp_new_node_nr() {
-  assert(irp);
-  irp->max_node_nr = irp->max_node_nr + 1;
-  return irp->max_node_nr - 1;
+/* Returns the number of all modes in the irp. */
+int (get_irp_n_modes)(void)
+{
+	return _get_irp_n_modes();
+}
+
+/* Returns the mode at position pos in the irp. */
+ir_mode *(get_irp_mode)(int pos)
+{
+	return _get_irp_mode(pos);
+}
+
+/* Adds mode to the list of modes in irp. */
+void add_irp_mode(ir_mode *mode)
+{
+	assert(mode != NULL);
+	assert(irp);
+	ARR_APP1(ir_mode *, irp->modes, mode);
 }
-#endif
 
-ir_graph *get_const_code_irg()
+/* Adds opcode to the list of opcodes in irp. */
+void add_irp_opcode(ir_op *opcode)
 {
-  return irp->const_code_irg;
+	int    len;
+	size_t code;
+	assert(opcode != NULL);
+	assert(irp);
+	len  = ARR_LEN(irp->opcodes);
+	code = opcode->code;
+	if ((int) code >= len) {
+		ARR_RESIZE(ir_op*, irp->opcodes, code+1);
+		memset(&irp->opcodes[len], 0, (code-len+1) * sizeof(irp->opcodes[0]));
+	}
+
+	assert(irp->opcodes[code] == NULL && "opcode registered twice");
+	irp->opcodes[code] = opcode;
 }
+
+/* Removes opcode from the list of opcodes and shrinks the list by one. */
+void remove_irp_opcode(ir_op *opcode)
+{
+	assert((int) opcode->code < ARR_LEN(irp->opcodes));
+	irp->opcodes[opcode->code] = NULL;
+}
+
+/* Returns the number of all opcodes in the irp. */
+int (get_irp_n_opcodes)(void)
+{
+	return _get_irp_n_opcodes();
+}
+
+/* Returns the opcode at position pos in the irp. */
+ir_op *(get_irp_opcode)(int pos)
+{
+	return _get_irp_opcode(pos);
+}
+
+/* Sets the generic function pointer of all opcodes to NULL */
+void  clear_irp_opcodes_generic_func(void)
+{
+	int i;
+
+	for (i = get_irp_n_opcodes() - 1; i >= 0; --i) {
+		ir_op *op = get_irp_opcode(i);
+		op->ops.generic = (op_func)NULL;
+	}
+}
+
+/*- File name / executable name or the like -*/
+void   set_irp_prog_name(ident *name)
+{
+	irp->name = name;
+}
+int irp_prog_name_is_set(void)
+{
+	return irp->name != new_id_from_str(INITAL_PROG_NAME);
+}
+ident *get_irp_ident(void)
+{
+	return irp->name;
+}
+const char  *get_irp_name(void)
+{
+	return get_id_str(irp->name);
+}
+
+
+ir_graph *(get_const_code_irg)(void)
+{
+	return _get_const_code_irg();
+}
+
+irg_phase_state get_irp_phase_state(void)
+{
+	return irp->phase_state;
+}
+
+void set_irp_phase_state(irg_phase_state s)
+{
+	irp->phase_state = s;
+}
+
+struct pass_t {
+	ir_prog_pass_t  pass;
+	irg_phase_state state;
+};
+
+/**
+ * Wrapper for setting the state of a whole ir_prog.
+ */
+static int set_irp_phase_state_wrapper(ir_prog *irp, void *context)
+{
+	struct pass_t  *pass  = context;
+	irg_phase_state state = pass->state;
+	int             i;
+
+	(void)irp;
+
+	/* set the phase of all graphs */
+	for (i = get_irp_n_irgs() - 1; i >= 0; --i)
+		set_irg_phase_state(get_irp_irg(i), state);
+
+	/* set the irp phase */
+	set_irp_phase_state(state);
+
+	return 0;
+}
+
+ir_prog_pass_t *set_irp_phase_state_pass(const char *name, irg_phase_state state)
+{
+	struct pass_t *pass = XMALLOCZ(struct pass_t);
+
+	def_prog_pass_constructor(
+		&pass->pass, name ? name : "set_irp_phase", set_irp_phase_state_wrapper);
+	pass->state = state;
+
+	/* no dump/verify */
+	pass->pass.verify_irprog = ir_prog_no_verify;
+	pass->pass.dump_irprog   = ir_prog_no_dump;
+
+	return &pass->pass;
+}
+
+irg_outs_state get_irp_ip_outs_state(void)
+{
+	return irp->outs_state;
+}
+
+void set_irp_ip_outs_inconsistent(void)
+{
+	irp->outs_state = outs_inconsistent;
+}
+
+void set_irp_ip_outedges(ir_node ** ip_outedges)
+{
+	irp->ip_outedges = ip_outedges;
+}
+
+ir_node** get_irp_ip_outedges(void)
+{
+	return irp->ip_outedges;
+}
+
+irg_callee_info_state get_irp_callee_info_state(void)
+{
+	return irp->callee_info_state;
+}
+
+void set_irp_callee_info_state(irg_callee_info_state s)
+{
+	irp->callee_info_state = s;
+}
+
+/* Returns a new, unique exception region number. */
+ir_exc_region_t (get_irp_next_region_nr)(void)
+{
+	return _get_irp_next_region_nr();
+}
+
+/* Returns a new, unique label number. */
+ir_label_t (get_irp_next_label_nr)(void)
+{
+	return _get_irp_next_label_nr();
+}
+
+/* Add a new global asm include */
+void add_irp_asm(ident *asm_string)
+{
+	ARR_APP1(ident *, irp->global_asms, asm_string);
+}
+
+/* Return the number of global asm includes. */
+int get_irp_n_asms(void)
+{
+	return ARR_LEN(irp->global_asms);
+}
+
+/* Return the global asm include at position pos. */
+ident *get_irp_asm(int pos)
+{
+	assert(0 <= pos && pos < get_irp_n_asms());
+	return irp->global_asms[pos];
+}
+
+#ifndef NDEBUG
+void irp_reserve_resources(ir_prog *irp, ir_resources_t resources)
+{
+	assert((resources & ~IR_RESOURCE_GLOBAL_MASK) == 0);
+	assert((irp->reserved_resources & resources) == 0);
+	irp->reserved_resources |= resources;
+}
+
+void irp_free_resources(ir_prog *irp, ir_resources_t resources)
+{
+	assert((irp->reserved_resources & resources) == resources);
+	irp->reserved_resources &= ~resources;
+}
+
+ir_resources_t irp_resources_reserved(const ir_prog *irp)
+{
+	return irp->reserved_resources;
+}
+#endif